Who am I?

I write science & speculative fiction featuring realistic worldbuilding, complex characters, and exhilarating plots that leave you fascinated…and a bit unsettled.

Connect with me on Twitter/X, read my blog at Substack, or reach out via email.

Published Fiction

Killing a Tiger | Originally published in Analog Science Fiction Magazine, 2022

Do we have reason to fear alien life? A starship captain has to decide weather to allow an unknown probe to leave the solar system and reveal humanity’s presence, or to destroy it

  • Short story
  • Fermi paradox
  • Inspired by Ernest Hemingway’s short fiction

The Species Mill | Buy Here

A novella about a historian reconstructing the past to discover a tragic flaw in human rationality.

  • Amazon best seller
  • Relativistic time dilation
  • Brains over brawn

Our Lady of Perpetual Change | Free to read

A neuroscientist-turned-priest returns to his old discipline after he is blessed by epiphany. But the further his pursues it, the more his church changes around him.

  • Horror
  • Materialism and religion
  • Short story

Karl Gantner


Who am I?

I write science & speculative fiction featuring realistic worldbuilding, complex characters, and exhilarating plots that leave you fascinated…and a bit unsettled.

Connect with me on Twitter/X, read my blog at Substack, or reach out via email.

Published Fiction

Killing a Tiger | Originally published in Analog Science Fiction Magazine, 2022

Do we have reason to fear alien life? A starship captain has to decide weather to allow an unknown probe to leave the solar system and reveal humanity’s presence, or to destroy it

  • Short story
  • Fermi paradox
  • Inspired by Ernest Hemingway’s short fiction

The Species Mill | Buy Here

A novella about a historian reconstructing the past to discover a tragic flaw in human rationality.

  • Amazon best seller
  • Relativistic time dilation
  • Brains over brawn

Our Lady of Perpetual Change | Free to read

A neuroscientist-turned-priest returns to his old discipline after he is blessed by epiphany. But the further his pursues it, the more his church changes around him.

  • Horror
  • Materialism and religion
  • Short story